How to get post author name in WordPress?

Question

In WordPress I need to fetch name of author who created post using author_id.
How can I find author_name ?

Answer 1

You can use get_the_author_meta(), to get author data.

echo get_the_author_meta('display_name', $author_id);

Hope this helps!

Answer 2

This should work like charm

<?php echo get_the_author(); ?>

For more detailed information. https://codex.wordpress.org/Function_Reference/get_the_author

Answer 3

Use below code in single.php or the relevant page you want author name

<?php get_the_author_meta( 'display_name', $author_id ); ?>

Answer 4

Add This code in single-post.php

<?php echo get_the_author(); ?>

I hope this will work !!

Answer 5

When used in the WordPress Custom REST API endpoint you can do it like this:

function customrestapiplugin_getpost( $slug ) {
    $args = [
        'name' => $slug['slug'],
        'post_type' => 'post'
    ];

    $post = get_posts($args);
    
    $data[$i]['id'] = $post[0]->ID;
        $data['title'] = $post[0]->post_title;
        $data['content'] = $post[0]->post_content;
        $data['excerpt'] = $post[0]->post_excerpt;
        $data['slug'] = $post[0]->post_name;
        $data['date'] = $post[0]->post_date;
        $data['link'] = get_permalink($post[0]->ID);
        $data['author'] = get_the_author_meta('display_name', $post[0]->post_author);
        $data['featured_image']['thumbnail'] = get_the_post_thumbnail_url($post[0]->ID, 'thumbnail');
        $data['featured_image']['medium'] = get_the_post_thumbnail_url($post[0]->ID, 'medium');
        $data['featured_image']['large'] = get_the_post_thumbnail_url($post[0]->ID, 'large');

    return $data;
}